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Disc player

a disc player and disc technology, applied in the field of disc players, can solve the problems of difficult to reduce the thickness of the disc player, and achieve the effects of reducing the thickness of the disc player, and simplifying the structure of the step plate and the clamp pla

Inactive Publication Date: 2006-08-10
CLARION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a disc player with a positioning unit, clamper unit, and drive unit. The positioning unit and clamper unit are separate and movable vertically to the drive unit. The positioning unit has a step plate and a G plate for different sized discs, while the clamper unit has a clamp plate for holding the disc. The step plate and clamp plate are moved synchronously and vertically to the drive plate by a cam plate. The positioning unit and clamper unit are designed to reduce their moving amounts, allowing for a thinner disc player design. The step plate and clamp plate are separately provided and have different moving amounts, allowing for separate settings to keep vibration isolation and clearance between the clamp plate and clamper ring. The fit members engaging with the cam grooves of the cam plate are integrally formed by bending and erecting them, simplifying the structure of the step plate and clamp plate.

Problems solved by technology

Therefore, it has been difficult to reduce the thickness of the disc player.

Method used

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Experimental program
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Embodiment Construction

[0027] Preferred embodiments according to the present invention will be described hereunder with reference to the accompanying drawings.

[0028] A disc player shown in FIG. 1A is used to reproduce information recorded on a recording medium disc 1 such as a CD (compact disc), DVD (digital versatile disc) or the like, and it comprises a player main body 11 and a chassis unit 12. Further, as shown in FIG. 5A, the player main body 11 comprises a loading unit 13, a positioning unit 14, a clamper unit 15 and a drive unit 16.

[0029] The chassis unit 12 is equipped with a vibration-isolating structure having a clamper and a spring (not shown) on a chassis 17 thereof, and the player main body 11 is supported through the vibration-isolating structure by the chassis 17 so as to be floated.

[0030] As shown in FIGS. 5A and 6, in a drive unit 16 of the player main body 11, a turntable 19 is disposed at the center on the surface of a drive plate 18 while a spindle motor 20 is disposed at the center...

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Abstract

A disc player 10 is equipped with a positioning unit 14 that has step plate 54 and positions a disc 1, a clamper unit 15 that has a clamp plate 66 and carries out a clamp operation on the disc positioned by the positioning unit, a drive unit 16 that has a pickup and a turntable 19 on a drive plate 18, and rotates the disc clamped on the turntable by the clamper unit to take information from the disc by the pickup, wherein the positioning unit and the clamper unit are provided separately from each other, and movable vertically to the drive unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a disc player that is mounted in a vehicle and reproduces information in a recording medium disc such as CD (compact disc) or the like. [0002] There is known a conventional disc player such as a CD player or the like which is mounted in a vehicle and designed such that a clamper for guiding and positioning a disc to a predetermined position and clamping the disc onto a turntable is equipped to a drive plate on which a pickup and the turntable are disposed so that the clamper can carry out the above operation by rotation of a clamp arm. [0003] However, in such a disc player, the rotation amount (rotation angle) of the clamp arm rotating within a range in the height direction of the disc player must be increased to move the disc in the vertical direction to the drive plate by a predetermined amount. Therefore, it has been difficult to reduce the thickness of the disc player. [0004] An object of the present invention has been impl...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G11B17/04
CPCG11B17/051
Inventor SATOH, KATSUHISA
Owner CLARION CO LTD